Brake fluid filter



FIG. 1 is a front elevational view of a brake fluid filter showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a perspective view thereof. 

The ornamental design of a brake fluid filter, substantially as shown. 